Telephone toll appakaius



2 SQueetsfSheet I,

{N -o Model.)

W. GRAY. TELEPHONE TOLL APPARATUS.

No. 510,535. Patented 1m. 12, 1893.

(No Model.)

W. GRAY. TELEPHONE TOLL APPARATUS.

.2 sheets-3mm.

" No. 510,535.. Patented Dec. 12, 1893[ NNNNNN oNAL umowmma COMPANY,

' il r E STATES the battery box.

PATENT OF ICE.

WILLIAM GRAY, OF HARTFORD, CONNECTICUT, ASSIGNOR OF ONE-HALF TO CHARLESSOBY, OF SAME PLACE.

TELEPHONE-TOLL APPARATUS.

SPECIFICATION forming part of Letters Patent No. 510,535, dated December12, 1893.

Application filed May 21, 1889.

To all whom it may concern Be it known that I, WILLIAM GRAY, ofHartford, in the county of Hartford and State of Connecticut, haveinvented certain new and useful Improvements in Telephone-TollApparatus, of which the following is a full, clear, and exactdescription,whereby any one skilled in the art can make and use thesame.

The object of my invention is to provide an apparatus by means of whichpublic stations may be established fortelephone users and a tollcollected by requiring the insertion of a coin before connection can bemade between the station and any other pointon the line; and to this endmy invention consists in the details of the several parts making up theapparatus as a whole, and in their combination, as more particularlyhereinafter described and pointed outin the claims.

Referring to the drawings: Figure 1 is a view in front elevation of myimproved apparatus, the major part being located within Fig. 2 is adetail plan view of the apparatus cutting the box in section on a planepassing through the coin channel and looking downward. Fig. 3 is adetail view in elevation of the apparatus with parts broken away to showconstruction and illustrating the position of the parts when theconnection is made by swinging the arm rest, with the magneto bell shownas detached from the back-board and the telephone removed from the hook.Fig. 4 is a detail view in elevation of the apparatus with parts brokenaway to show construction and illustrating theposition of the parts whenlocked. Fig. 5 is a detail rear view, on enlarged scale, of the triplever and its spring.

In the accompanying drawings the lettera denotes the back board, towhich the battery box I) is secured, and of which it usually forms apart.

c is the magneto bell and d the telephone.

The pivot e secured to the back board supports the tumbler or switch e,that is adapted preferably to swing in a plane parallel to the board soas to insure a compact arrangement of the moving parts.

The pull rod fis, in the form of my improvement herein illustrated,connected to the lever f that extends across the back board Serial No.311,686- (No model.

and has aslot f with which a pin g on the end of the lever g engages,the said leverg being connected to a rock shaft g that also supports anarm rest h, the several levers being so connected that by a swingingmovement of this arm rest the lever f is depressed or raised in such away as to cause the tumbler e to swing in a vertical plane. A spring e1s secured at one end to the back board and at the other to the tumblere in such manner as to hold the latter normally in the position shown inFig. 4 of the drawings, that is with the trip device 2' in thelockingposition. This trip lever 2' is pivoted to the back board insuch'position that one end if engages the lug e that is formed on thetumbler e. while the other end or arm i of the trip lever projects intothe coin channel j. This trip lever bears a counterpoise 2' thatconsists of a screw mounted in the lug i projecting on one side of thepivot, and arranged so that its weight may be moved to the right or tothe left so as to form a means for a delicate adjustment of the tripleverupon its pivot 7,. A return spring k secured to the back boardprojects into a socket t in the trip lever, but only makes contact withthe lower surface of this socket. or with a lug corresponding with saidwall of the socket, when the trip lever is rotated beyond a certainpoint by the swinging movementof the tumbler. In its normal position thetrip lever has a limited swinging movement on its pivot, the weight of acoin on the end i being sufficient to throw that part of the end if thatis in contact with the cam on the. arm 6 of the tumbler into suchposition that the stop which this part 11 forms against the swingingmovement of the tumbler by its contact with the lug e is removed to aposition that enables the cam e in the swinging movement of the tumblerto completely open the coin channel and allow the coin to move down intoa drawer or coin receptacle j. The trip lever is so arranged that thearm '5 projecting into the coin channel through an opening in the wallof that channel obstructs the passage of a coin and moves only asufficient degree to unlock the tumbler and allow the pull rod to beoperated so as to put the battery into circuit so that the magneto bellmay be operated to call the central ofiice or other station that isconnected with the station where this device is located. When the pullrod is operated, as by pushing upon the arm rest h, the tumbler 1s swungon its pivot until its arm engages the spring Z that projects into thepath of movement of the tumbler, and this spring Z is connected to abinding-post appurtenant to the magneto bell by means of the wire 4, andthe wire 2 extends from another bindingpost appurtenant to the magnetobell to one of the poles of the battery 1, while the other pole of thebattery is connected to the trip lover or to the stud that supports thespring is by means of the wire 3. An adjusting screw is is borne in ablock 10 in such position that its lower end is in contact with thespringk, and it is used to control the position of this spring 7a withreference to the trip lever 'i,that is, so that the outer end of thespring that engages the lever may move vertically in a position thatwill limit the free movement of the trip lever to the proper point tosecure the proper engagement of the end 'i of the lever with the cam eon the tumbler. The coin introduced in the slot is employed to tilt theleveralimited distance and to hold it in proper position to be operatedby the tumbler, the lever permitting the further movement of the coinonly after the tumbler has been swung a certain distance.

The method of operating this apparatus has been made sufficiently clearin describing the several parts, but as the invention described hereinmay be embodied in an apparatus varying in details from the specificparts above enumerated I do not limit myself to the specific andpeculiar combination of the several parts described and shown.

The main object is to provide a coin controlled tumbler or switch thatrequires the positive operation of certain mechanism apart fromelectricity to complete the circuit between the battery and the magnetobell, the said circuit being normally kept open until a coin has beenemployed to unlock that part of the apparatus that thereafter ismechanically used to close the circuit.

I claim as my invention 1. In a telephone apparatus, in combination witha magneto bell, the battery and connecting wires, a spring connection onone side of a break in the circuit with one pole of the battery, aswinging tumbler in electrical connection with the other pole of saidbattery, and a tilting trip lever having one arm projecting into thecoin channel and its other arm forming a stop that in the normalposition of the trip lever locks the tumbler against swinging movement,all substantially as described.

2. In a telephone apparatus, in combina tion with a magneto bell, thebattery and connecting wires, the contact piece connected to one pole ofthe battery, the tumbler or switch connected to the other pole of thebattery, the pull rod connected to the tumbler, the within describedmechanism for operating the pull rod, the trip lever with a stop locatedin the path of movement of a part of the tumbler, and the trip leverspring, all substantially as described. I

3. In a telephone apparatus, the coin controlled trip lever having onearm located in the coin channel .and the other arm forming a stop andlocated in the path of movement of a tumbler, the counterpoise borne onthe trip lever, the trip leverspring projecting into a socket in thetrip lever and normally outof contact with the walls of the socket, thetumbler or switch, the pull rod pivotally connected to said tumbler, theswinging arm rest it in operative connection with the pull rod, thecontact spring located in the path of movement of the tumbler and inelectrical connection with one pole of the battery, and the battery withone pole in electrical connection with the spring Z and the other inelectrical connection with the tumbler c, all substantially asdescribed.

4. In a telephone apparatus, in combination, the magneto bell, theconnecting wires, the coin controlled apparatus consisting of thetumbler e, having a lug e With a cam 6 pull rod f, the within describedtumbler operating mechanism, the tilting trip rod i with one arm forminga stop in the path of movement of the lug e on the trip lever e and theother arm 1' projecting into a coin channel j, the coin channel j, thetrip lever spring 70, the pull rod pivotally connected to the tumbler,the within described rod operating mechanism, and the contact spring Z,all substantially as described.

5. In a coin controlled device, the coin channel j, the trip lever twith the arm 71 projecting into the coin channel, the arm 2'', havingthe spring socket 2', the counterpoise 2' the adjustable trip leverspring projecting into the spring socket 11 and normally out of contactwith the wall of said socket, the tumbler c with the lug e and the cam 6and the pull rod f pivotally connected to the tumbler, all substantiallyas described.

XVILLIAM GRAY. lVitnesses:

LoUIs F. HAWLEY, A. B, JENKINS.

